2. Unscrew
and
lift
the
lid
from
the
rear
and
remove
it
,
then
lift
the
upper
door
and
place
it
on
a padded
surface
to
prevent
it
scratched
.
3. Remove
the
upper
hinge
core
,
transfer
it
to
left
side
and
tighten
securely
,
then
put
it
in
a
safe
place.
4. Remove
the
two
flange
screw
,
then
remove
the
middle
hinge
that
hold
the
lower
door
in
place
.
Lift
the lower
door
and
place
it
on
a
padded
surface
to
prevent
scratching
it
.
5. Remove
the
hinge
hole
cover
from
the
right
holes
as illustrated
and
transfer
them
to
the
uncover
hole at
the
left
side
.
12